2008-07-02 06:04:34 [BF537 - STAMP] AD1836 and A/V extender card
Erwan A (FRANCE)
Message: 58213
Hi all,
I want to use the cards BF537-STAMP with the A/V extender.
I made different tests without success,i can't heard any sound.
In the kernel, i have alsa, alsa-lib, alsa-utils and linphone. I use "uClinux-dist-2008R1-RC8".
Sw5 enables PF4 on the stamp board. Jumpers on the A/V extender are also configurated.
Alsa driver in the kernel is the 1.0.12 version.
root:~> cat /proc/asound/version
Advanced Linux Sound Architecture Driver Version 1.0.12rc1 (Thu Jun 22 13:55:50 2006 UTC).
In i²S mode (configuration into the kernel and with jumpers), the card A/V extender is attached and alsa sound driver is correct.
# cat /proc/asound/cards
0 [ad1836 ]: AD1836-LIN - ADI ad1836
ADI ad1836 at PF4 SPORT0 rx/tx dma 3/4 err irq 45
# cat /proc/asound/card0/registers
DAC_CTRL_1 0x0010
DAC_CTRL_2 0x103c
DAC_VOL_1L 0x23ff
DAC_VOL_1R 0x33ff
DAC_VOL_2L 0x4000
DAC_VOL_2R 0x5000
DAC_VOL_3L 0x6000
DAC_VOL_3R 0x7000
ADC_PEAK_1L 0xffff -63 dBFS
ADC_PEAK_1R 0xffff -63 dBFS
ADC_PEAK_2L 0xffff -63 dBFS
ADC_PEAK_2R 0xffff -63 dBFS
ADC_CTRL_1 0xc000
ADC_CTRL_2 0xd02c
ADC_CTRL_3 0xe000
But if i try to use aplay, i had the following error :
root:~> aplay -D ad1836 /root/wb_male.wav
Playing WAVE '/root/wb_male.wav' : Signed 16 bit Little Endian, Rate 16000 Hz, Mono
ALSA lib ../../../alsa-lib-1.0.12/src/pcm/pcm_params.c:2152:(snd_pcm_hw_refine_slave) Slave PCM not usable
aplay: set_params:882: Broken configuration for this PCM: no configurations available
I use this asound.conf file in my etc directory :
root:~> cat /etc/asound.conf
pcm.ad1836 {
type plug
slave {
pcm {
type mmap_emul
slave {
pcm {
type hw
card 0
format S32_LE
rate 48000
channels 2
sync_ptr_ioctl 1
}
}
}
}
}
Without asound.conf file, i had :
root:~> aplay /root/wb_male.wav
Playing WAVE '/root/wb_male.wav' : Signed 16 bit Little Endian, Rate 16000 Hz, Mono
ALSA lib ../../../alsa-lib-1.0.12/src/pcm/pcm_plug.c:773:(snd_pcm_plug_hw_refine_schange) Unable to find an usable access for 'default'
ALSA lib ../../../alsa-lib-1.0.12/src/pcm/pcm_plug.c:773:(snd_pcm_plug_hw_refine_schange) Unable to find an usable access for 'default'
aplay: ../../aplay/aplay.c: 919: set_params: Assertion `err >= 0' failed.
Aborted by signal Aborted...
In TDM mode (Kernel and jumpers), the kernel doesn't detect the card A/V extender.
Does anyone know what could be wrong with my asound.conf file ? Does anyone know how to use the A/V extender with BF537-STAMP board ?
Thanks,
Erwan
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2008-07-02 06:22:53 Re: [BF537 - STAMP] AD1836 and A/V extender card
Sonic Zhang (CHINA)
Message: 58214
A/V extender card is not supported.
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2008-07-02 06:47:17 Re: [BF537 - STAMP] AD1836 and A/V extender card
Erwan A (FRANCE)
Message: 58215
Hi sonic zhang,
But signals on the expansion interface had both signals SPORT and SPI.
Why the A/V extender card is not supported ?
Thanks,
Erwan
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2008-07-02 08:11:14 Re: [BF537 - STAMP] AD1836 and A/V extender card
Mike Frysinger (UNITED STATES)
Message: 58216
we havent written any drivers for it yet
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2008-07-02 08:26:10 Re: [BF537 - STAMP] AD1836 and A/V extender card
Robin Getz (UNITED STATES)
Message: 58218
Erwan:
Sonic and Mike are correct - we do not support the AV extender card - since we have no time to validate it, and there are other pieces of hardware that are easier for us to deal with.
-Robin
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2008-07-02 12:11:31 Re: [BF537 - STAMP] AD1836 and A/V extender card
Erwan A (FRANCE)
Message: 58226
ok, thanks.
Do you know where can i buy the AD1836 daugter card (only with audio) for the BF537-STAMP ?
Erwan
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2008-09-09 13:51:40 Re: [BF537 - STAMP] AD1836 and A/V extender card
Omar Chanouha (UNITED STATES)
Message: 61847
I am also looking for the AD1836 Audio Codec Card. When I go to the analog how to buy page the only card listed is the EVAL-AD1836EAB and it is not set to be sold for 2 months. Is this new card even going to be supported? I believe the old card is the AD1836A-DTRBRD, but digikey no longer sells it and I can't find it anywhere else. Can someone please explain what is going on between the uclinux distro and the analog hardware? Can someone post a link to where I can buy the neccesary hardware to get the BF537 stamp running full linphone (audio/video/camera)?
Thanks!